Nanometer composite hydrogel and preparation method thereof

Abstract

The invention discloses a nanometer compound aquagel and preparing method, which comprises the following steps: polymerizing the prepolymer liquid at 25-35 deg.c for 20-30 h to obtain the product. The monomer is selected from acrylamide. The crosslink is selected from hectorite of modified sodium pyrophosphate. The general formula of chemical structure is Mg5.34Li0.66Si8O20 (OH) 4Na0.66.

Description

technical field

[0001] The invention relates to a preparation method of nanocomposite hydrogel. Background of the invention

[0002] Polymer hydrogel is a polymer with a three-dimensional network structure that can absorb a large amount of water and swell, and is generally formed by cross-linking hydrophilic homopolymers or copolymers. Hydrogels are insoluble in water, but swell in water.

[0003] In the past few decades, there has been a surge of research on environmentally sensitive and physiologically sensitive hydrogels, and the typical response of sensitive hydrogels is the change of hydrogel volume. This volume change is discontinuous, and using this stimuli-responsive property, hydrogels have been applied in the following aspects: in the chemical industry for separation; in medicine for the controlled release of drugs; in the mechanical industry Used to make memory element switches, sensors, etc.

[0004] However, because polymer gels are generally formed by cross-...